MySQL Data in the PHP Array - php

Question

I have a table as follows that is used to store details of employees:
+---------+---------+------------------+
| of_code | name | employment_status |
+---------+---------+------------------+
| 1 | Jhon | 1 |
| 2 | Ram | 1 |
| 3 | Edward | 3 |
| 4 | William | 2 |
+---------+---------+------------------+
This is one of the options in my Codeigniter project.
Desired output
I want to show the employment_status in separate columns in the view as per the value in it. If employment_status = 1, it should be in the first column. If employment_status = 2, it should be in the second column. If employment_status = 3, it should be in the the column and so on.
Controller (Relevant Part)
$where = NULL;
$this->data['officerList'] = $this->Officer_model->officerSummary($where);
Model
function officerSummary($where){
$q = $this->db->query("SELECT
of_code, name, employment_status as cnt
from tbl_officer $where
");
if ($q->num_rows() > 0) {
return $q->result();
}
}
View (Relevant Part)
<?php
$officerLists = [];
foreach ($officerList as $row) {
if (!in_array($row->cnt, $officerLists)) {
$officerLists[] = $row->cnt;
}
}
?>
<div class="table-responsive" id="datatable">
<table id="ExData" cellpadding="0" cellspacing="0" border="0"
class="table table-bordered table-condensed table-hover table-striped reports-table">
<thead id="th">
<tr class="" style="background-color: #d966ff !important;">
<th>#</th>
<th style width="5%" class="text-center"><font size="1"> Code</th>
<th style width="15%" class="text-left"><font size="1">Name</th>
<th class="text-center" colspan="<?= count($officerLists) ?>"><font size="1">Employment Status</th>
</tr>
</thead>
<tbody>
<?php
$count = [];
if(!empty($officerList)) {
foreach ($officerList as $rows) {
$total += $rows->cnt;
$c++;
?>
<tr>
<td><font size="1"><?= $rows->of_code ?></td>
<td><?= $rows->name ?></td>
<?php
foreach ($officerLists as $value) {
if ($rows->cnt == $value) {
if (isset($count[$value]))
$count[$value] = $count[$value] + $rows->of_code;
else
$count[$value] = $rows->of_code;
echo "<td class='text-center'></td>";
} else
echo "<td class='text-center'>-</td>";
}
}
?>
</tbody>
</table>
The function outs three columns correctly, but with no values. Only '-' shows non-relevant places in the column as follows.
What may be going wrong? Can anyone help?

Answer 1

Maybe using a SELECT - CASE structure can be your option
A query in this way
SELECT of_code,
name,
CASE WHEN employment_status = 1 THEN employment_status AS StatusA,
CASE WHEN employment_status = 2 THEN employment_status AS StatusB,
CASE WHEN employment_status = 3 THEN employment_status AS StatusC
FROM yourTbale;
Every CASE will verify if the status is 1 or 2 or 3
Th previous step will generate a new column with a given alias
Because we need the status value as cell value in our result I put it again after the THEN clause
If this work, you only will need to adapt it in CI sintax